2584783- Explorer Webapp deployment fails on Netweaver 7.4

Symptom

Error received while deploying explorer and explorer_help web application:

Cannot deploy two applications with identical application aliases (context roots). Your application [SAP-SE/explorer-Web-Applications-Java-4.2] defines an application alias (context root) [explorer] that is already in use by application [SAP-SE/explorer-Web-Applications-Java-4.1]. There are two possibilities in order to proceed with deployment: 1) Define different application alias (context root) for your application [SAP-SE/explorer-Web-Applications-Java-4.2] (this is the preferred option). 2) Undeploy the application [SAP-SE/explorer-Web-Applications-Java-4.1]